Frequent collinear long transfer of DNA inclusive of the whole binary vector during Agrobacterium-mediated transformation

Frequent collinear long transfer of DNA inclusive of the whole binary vector during... When Agrobacterium was used to transform Nicotiana plumbaginifolia protoplasts and Arabidopsis thaliana roots and seedlings, a large number of plants were found in which not only the T-region defined by the border repeat sequences but the entire binary vector was integrated, as determined by both PCR and Southern analysis techniques. N. plumbaginifolia protoplast co-cultivation experiments yielded 3 out of 5 transformants with collinear sequence past the left border. In Arabidopsis root transformation experiments, 33% (6/18) of the transformants had T-DNA which exceeded the left border repeat. Vacuum infiltration of Arabidopsis seedlings produced even a greater percentage of transformants with sequences outside the left border repeat (62%, 39/63). The long transfer DNA cosegregated with the T-region encoded hygromycin resistance in the T2 progeny eliminating the possibility that long transfer DNA was of extrachromosomal or Agrobacterium origin. The high frequency of long transfer after vacuum infiltration of A. thaliana needs to be considered when analyzing T-DNA tagged mutants. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Plant Molecular Biology Springer Journals

Frequent collinear long transfer of DNA inclusive of the whole binary vector during Agrobacterium-mediated transformation

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Publisher
Kluwer Academic Publishers
Copyright
Copyright © 1997 by Kluwer Academic Publishers
Subject
Life Sciences; Biochemistry, general; Plant Sciences; Plant Pathology
ISSN
0167-4412
eISSN
1573-5028
D.O.I.
10.1023/A:1005849303333
Publisher site
See Article on Publisher Site

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